/*
 * Copyright (C) 2009 Leandro Aparecido <lehphyro@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.metalframework.tracing;

import javax.annotation.*;

import org.aspectj.lang.*;
import org.aspectj.lang.annotation.*;
import org.metalframework.annotation.*;
import org.springframework.beans.factory.annotation.*;
import org.springframework.core.annotation.*;

@Aspect
@Order(0xFF)
@InfrastructureComponent
public class TraceAspect {

	private TraceInterceptor interceptor;
	
	@Pointcut("@within(org.metalframework.annotation.Trace)")
	public void classAnnotatedWithTrace() {
		// Nothing
	}
	
	@Pointcut("execution(@org.metalframework.annotation.Trace * * (..))")
	public void methodAnnotatedWithTrace() {
		// Nothing
	}

	@Pointcut("within(@(@org.metalframework.annotation.Trace *) *)")
	public void classAnnotationAnnotatedWithTrace() {
		// Nothing
	}

	@Pointcut("execution(@(@org.metalframework.annotation.Trace *) * * (..))")
	public void methodAnnotationAnnotatedWithTrace() {
		// Nothing
	}

	@Around("classAnnotatedWithTrace() || methodAnnotatedWithTrace() || " +
			"classAnnotationAnnotatedWithTrace() || methodAnnotationAnnotatedWithTrace()")
	public Object trace(ProceedingJoinPoint ppj) throws Throwable {
		return getInterceptor().invoke(ppj);
	}

	// Getters/Setters

	public TraceInterceptor getInterceptor() {
		return interceptor;
	}
	
	@Required @Resource
	public void setInterceptor(TraceInterceptor interceptor) {
		this.interceptor = interceptor;
	}
}
